Talking-machine.



H. LUBSCHUTZ.

TALKING MACHINE. PPLcAIloN mm APH. 3. 19u.

1,258, 1 28. iutnted Mur. 5, 1918 UNITED STATES PATENT OFFICE,

HENRY LoBsoHUTz, oF NEW YORK, N. Y.

' TALKING-MACHINE.

1,258,128. Specieativn of Letters Patent Patented Mar. 5, 1918. Application tiled April 3, 191?. Serial No. 159,530.

To all 'whom it may concern.' of wood tends to eliminate all foreign e it known that I, HENRY LouscHUTz, a sounds or tones because of the absence of citizen of the United States, and resident of. vibrations in the walls of the tone passages. ew York city, in the county of Bronx and In order to support the tone arm and 5 State of New York, have invented certain eliminate friction and undesirable 'vibrzb new and useful Improvements in Talkin tions, the said arm is provided with an an- Machines, of which the following is a speclnulnr spherfcal portion o'r collar 2l which eation. i rests on and is seated in a Vcorres )onding The object of my invention is to provide annular bearing 22 rovided with the l0 an improved tone arm for talking machines. spherical or semi-circular annular scat or More particularly it is one of theobjects of socket 23 for the reception` ofthe bearing my invention to provideatone arm in which collar portion 21. 24 1s a anged sleeve ltie passa es for the sound waves,are conwhxch surrounds the collar-'21 and holds str-acted a ost entirely of wood. By usinlg t 23. l The bearing 22 1 5 a wooden tone arm, the objectionable 'meta and the sleeve 24 are `botlfinade of hard L\1ie, harsh orl scratching sounds accom anywood. `It will be noted that the tdne arm ij tone reproduction in talking mac ines is fee to swin ,horiz'gntallwL-apdv-,at the lmost entirely eliminated and onl same time peruil the.'s 'o'u'if-d-2V xlft to rest be reproduced are hea -upon therreoord by-gravi "g1 i r provides a wooden annularele'aianqejatl novelmterior construe# and Mareillred' inthe 6 and arexfeglllffii'zllm Litli the iitreproductionisobtamed.and which* vvlll bei; 'tone .passagelith unti'ng the ted out detail hereinafter.` tone arm in',.the l ii1a`nelin 1 teii;Yibration e r Withthese'and other objects in view my is eliminated andfricti `d i' i eration emprise the @lemons-ved i minimun, 'i i sans and @emerse-liefe :ne wenn@ r aanbied aslilletraed and @weitesten g 'n`e mpanyipg .drawing lnvvhlchf. f 21:5 jtionsetfffogthmthd is@ :.algum *1 is a view, partly 1n section, of 'e' spirit of thennventpn -j'toe arm and sound box embodying my in# appended 78.115011; I -claim:4

Fig. 2 is a plan view of the supporting A tone arm for talking machines made of 35 j eferring to Fig. 1, the talking machine vertical branch, ,'Said hor1 zontal branch is represented at 10, the turntable at11 and being provided with a straight tone pa$age,

the sound box. I`he Atone arm comprises` the passage communicating with the ,.passage vertical and horizontal branches-15 and 16 aforesaid and comprising la" taperedportion 40 which are formed referably out of a sin? `piece of hard woog, such as mahogany instance. The branch 16 is provided with said tapered portion, saidlstraight poi-tion the horizontal straight tone passage 17 being further provided on the outside which merges into the tapered tone passage thereof with an annule;` spherical collar. n

46 18 which preferably is grooved as shown at wooden bearing havinga groove for the rc 19. 20 designates a tone passage or mouth ception ofsaid collar-and a wooden slecwI wood and'comprising a' horizontal and a' ofthe tone arm which 1s straight and of for I etaming said tone armen said wooden greater diameter than the taperedlportion bearing:

18.` Ihave found by experiments that'when LSigned at New York in the` county of 60 the tone passages 17, 18 and 2O are shaped New York and State of Tevs' York ibis 21st hs illustrated, a very clear and soft tone day of March A. D. 1917 reproduction is obtained with very good volume. I have further found that the use HENRY'LOBSCHUTZ. 

